8 inch sch20 seamless carbon steel boiler tube/pipe astm a192

Seamless steel pipes are generally made by hot rolling or cold rolling of high quality carbon-bonded steel 16Mn, 5MnV or alloy steel 40Cr, 30CrMnSi, 45Mn2 and 40MnB. Seamless pipes made of low carbon steel such as 10 and 20 are mainly used for fluid transmission pipelines. Seamless tubes made of medium carbon steel, such as 45, 40Cr, are used to manufacture mechanical parts,such as stress parts of automobiles and tractors.Hot-rolled seamless steel pipes are divided into general steel pipes, low and medium pressure boiler pipes, high pressure boiler pipes, alloy steel pipes, stainless steel pipes, petroleum cracking pipes, geological steel pipes and other steel pipes.

Secification	Size:	O.D.: 50~273 Length: 1~12m(5m,5.8m,6m,11.8m,12m) or other length as customers’ requests
	O.D tolerance:	±0.02mm
	Standard:	ASTMA53,BS1387-1985,GB/T3091-2001,GB/T13793-92, GB/T6728-2002
	Material:	Q195,Q215,Q235,Q345,ST37 ST52, A36,A53,SS400,S235,S275,C20,C45,1006,1008,1010,1022
	Product Category:	Allurgy,Mineral &Energy
	Application	Construction, building material, Bridging ; ship building,fence,heating facilities,airport structures; chemical structures,traffic,electricity, etc
	Technique:	Hot rolled / extruded,ERW,High-frequency welded
	Surface:	Black, anti-rust,oiled,galvanized,painted Or as customers’ requirements
	Pipe end:	Plain end; beveled end; Protected by plastic pipe cap
	Origin:	china
Trade Information	Price:	Negotiated
	MOQ:	5 tons per size
	Payment Terms:	T/T , L/C, Western Union
	Trad terms:	FOB; CNF; CIF
	Delivery time:	With 20 days after confirmed order
	port	qingdao port

Detailed Images

Seamless steel pipes are perforated from a whole round steel, and steel pipes without
welds on the surface are called seamless steel pipes. According to the production method, seamless steel pipes can be divided into hot-rolled seamless steel pipes, cold-rolled seamless steel pipes, cold-drawn seamless steel pipes, extruded seamless steel pipes, and top pipes. According to the cross-sectional shape, seamless steel pipes are divided into two types: round and special-shaped. Special-shaped pipes have square, oval, triangular, hexagonal, melon seed, star, and finned pipes. The maximum diameter is 900mm and the minimum diameter is 4mm. According to different uses, there are thick-walled seamless steel pipes and thin-walled seamless steel pipes. Seamless steel pipes are mainly used as petroleum geological drilling pipes, petrochemical cracking pipes, boiler pipes, bearing pipes, and high-precision structural steel pipes for automobiles, tractors, and aviation.